I had written a counterpoint, but honestly I'm fully aware that it's not intended to give the Lord's ability on stuff the HB shoots - I'm mostly just annoyed that it's such an obviously badly written rule. Keywords are there for a reason, y'know? Could they not have just said "Until the start of your next turn, that enemy unit has its Toughness value reduced by 1" or however they want to format that phrase? Given that the army is filled with units that key off being in Contagion Range of things, it's just such a poor way to phrase it.
Yech. MtG may be a ridiculously overpriced cardboard crack habit of a game, but at least they know how to format their rules consistently

I mean, am I being dumb? RAW, I'm pretty sure it can be read as saying the target takes the Lord's D3 MW? I'm certainly not going to apply this in-game, but just in terms of how I'm parsing the grammar, it can be read as such, yeah?